Improvement in steam-generators



HENRY J. BRUNNE R, OF NAZARETH, PENNSYLVANIA. Letters Patent No. 88,694,dated 4 ml 6,1869.

IIWPROVEMENT IN STEAM-GENERATORS.

m Schedule referred to these Letters Patent and making part of the same.

.To all wlwm it may concern Be it knownthat I, HENRY J. BRENNER, ofNazareth, in the county of Northampton, and State of Pen nsylvania,.haveinvented an'Improved Steam-Boiler; and I do hereby declare that thefollowing is a full and exactdescription thereof, reference being had tothe accompanying drawings, making part of this specifica tion- Figure 1being a view, in perspective, of the boiler, showing its construction. 1

- Figure 2, a central longitudinal section through one 1(;f the tubes,and through the adjoining water or steam,-

oxes.

Figure 3, a view, in perspective, of the boiler when set in the furnace.

Like letters designate corresponding parts in all of the figures.

My improved boiler is of the class called sectional boilers, beingcomposed wholly of a series of water and steam-boxes, A A and B B, atthe ends, connected by series of tubes 0 G, the end boxes formingindependent sections of the boiler, and being eitherof cast-iron orwrought iron, while the tubes are, as usual, of wroughtiron.

The method of connecting. the pipes and boxes may be as shown in thesection, fig. 2, or any other suitable one.

As shown, the ends of the tubes fit into annular grooves co, in thesides oflthe boxes, there being packing-rings ff in the bottom, totighten the joints.

An iron rod, a, extends through 'themiddle of each tube, and projectsthrough the contiguous boxes, so as to receive tightening-nuts lab onthe projecting ends, provided with screw-threads, with packing-washers g9 under the nuts.

The nature of my invention consists in the relative arrangement of thetwo series of boxes AA and B B, at the two ends of the boiler, namely,at one ,end (the front, as shown,) the boxes A A are vertical, orupright, and at the other end (the rear, as represented,) the boxes BBare horizontal.

Withthis arrangement, no two tubes 0 0 are contubes; and if, as is mostlikely, a whole layer, or row of tubes, expand together, or equally, thebox which is connected with all at one end, allows such. expansionwithout the other parts of the boiler being in theleast afi'ectedthereby.

Another advantage of this construction is, that any single tube may beremoved for repair, or replaced, by'

taking ofi only one box.

Finally, this construetion'insures great strength, and is as free fromany strain as can weH be.

The boiler may be placed in a horizontal position, or it may be somewhatinclined from front to back, as represented in fig. 3, the supply-pipe Dentering the lower rear horizontal box B, at one corner of the boiler,and the steam issuing at the pipe G from the vertical box A, at theupper corner of the boiler, diagonally opposite to the supply-pipe.

The arrangement of the try-cocks l m it, and other fixtures of theboiler, may be as indicated.

What I claim as my invention, and desire to secure by Letters Patent,isv The arrangement of the two series of boxes, A A and B B, and theseries of connecting-tubes O C, so

that the boxes A A, atone end ofthe boiler, are ver-- tical, or upright,and the boxes B B, at the other end, horizontal, substantially as hereinspecified.

In witness that the above is a true specification of my improvedsteam-boiler, I hereunto set my hand, this 28th day of November, 1868.

HENRY J. BRUNN'ER.

Witnesses J. E. W. MILLER, JOHN W. Bum.

